Fishway



Jan, 13, 1925.

E. c. FEARNow ET Al.

' v-FSHWAY Huw-: #Wm/ A J l 2 Jan, 13, 1925.

E. C. FEARNOW ET AL FIHWAY l Filed April 17, 1924 S Sheets-Sheet 2 gli l 1% I l Janjls, 1925.

y 1,522,772 E. C. FEARNOW ET AL FISHWAY Filed April 17. 1924 8 Sheets-Sheet Fig. 3.

Jan, 13, 1925.

E c. FEARNOW E? AL FISHWAY Filed April 17,

. 8 Sheets-Sheet 4 Jan, f3, 1925.

E. C. FEARNOW ET AL FIsHwAY Filed April 17 1924 8 Sheetsheet 5 fiafy/ Jan. 13, 19215.

E. C. FEARNOW ET AL Filed April 17 1924 8 Sheetsheet 6 Qmnrw b21/W @ZM an, l 3,

E. C. FEARNOW ET AL FI SHWAY Filed April 17 1924 8 Sheets sheet '7 Jan. I3, 11925 1,522,772

' E. c. FEARNow ET AL FISHWAY Filed April 17, 1924 8 Sheets sheet .8

Patented Jan. 13, 1925.

UNITED STATES v1,52372 icarlszlvrv oFF1cE.

EDGAR C. FEARNOW, F CAPITOL HEIGHTS, MARYLAND, AND GLEN. C. LACH, OF

WASHINGTON, DISTRICT OF COLUMBIA.

FISHWAY.

Application tiled April 17, 1924. Serial No. 707,087.

To all 'whom it may eoncem:

Beit lmown that we, EDGAR C. FBARNOW, a citizen of the United States, residing at Capitol Heights, Prince Georges County, 5 State of'Maryland, and GLEN U. LEACH, a citizen of the United States, residing at lVashington, District of Columbia, have invented certain new and useful Improvements -in Fishways, of which the following is a specification.

This invention relates to improvements in fishways.

The present invention is particularly adapted for enabling fishto proceed up rivers or streams having dams of relatively great height. A dam of considerable height is substantially a stoppage against fish passing 11p-stream. The streams or rivers on the western .coast of the United States have a great many dams whereby to collect waters foi-power andl irrigation purposes, and as well known, these streams represent the home Waters 4 of the fish known as salmon. `Salmon arehatched in these streams, and after reaching-a certain degree of maturity, leave the streams and enter the ocean. These `salmonreturn-to their native waters after a periodpf time andare then fully matured und largein size. The salmon when return- :zo ing proceed upthe-rivers as faias possible for thepurpose of. spawning and thus to provide eggs for renewing` the supply ofthe 'Vf-ith.:thatheretofore recited in view, it is the object of the'present invention to -pro- Vonne-fish which in time'migrate. to the" vide apracticablemeans to enable salmon or vthe structure of a water gate employed;

other ish. to pass over dams when proceeding up a river 0r streamandthus permit tne' l 40 salmon to return to therr-"nativel waters for spawninfr.

It isan important object-df the inventionthat the apparatus operatev to transfer fish` from the lower waters of ariver. with rel-ation to a dam. to the higher waters of said rivers without injurvto. the fish.

A still further-object ofthe invention is that the apparatus 'be adapted tobeoperated b v water pressure obtainable fromthe stream or riverinwhich thesame maybe located.

vet further objectvof the invention is that vthe apparatus may ybe incorporated in 'the structure of the dam at a relatively low cost.

It is also an object of'the invention that the apparatus operate to transfer `fish from;f lthe uppe'r side of a dam to the -lower side'.4

thereof and thus enable small fish to mov down-stream.

It is also within the scope of objects of the invention that the apparatus .as a

whole operate in an automatic and reliable manner.

Other objects, and objects relating to details of construction, combinationand ar-j rangement of parts will hereinafter'appear in the detailed description to follow.

The invention is illustrated byway of"'ex.' ample in the accompanying drawmgs, in m which- Figure l is a vertical transverse sectional View taken through the apparatus'of the Figure 5 is an enlargedfragmentary view showing inside elevationv a portion of the Operating mechanism fo ratus;

Figure 6 is aview similar toA Figure ,5 ,v

but showing the same mechanism in V`front elevation; Flgure 7. is a fragmentary sectional elevation taken at a point adjacent the bottom of .the transfer shaft or \vell included in the present invention and showing -1n particular Figure 8 is a fragmentary sectional view Figure 9 is a fragmentaryxiew in side elevation showing a valve-opcrating means employed;

Figure 10 is a top plan view of the same", and,

Figures 11 and 12 are detailed views of a connectingr or operating rod and cam member` respectively, employed in connection with the'valve-operating means shown in Figures 9 and 10.

Figure 13 is a fragmentary top plan view of a dam construction with the present appa# ratus applied.

Italien atright angles to Figure 7 and fur-- 4ther lllustratmpr the structure ofthe gate [shown in Figure 7;

no f

Vsa@ 1,522,772

Like reference numerals refer to similar parts throughout thediiferent views of the drawings. Y f

Preferably the dam 4 structure, with which the present invention mayv be associated -1s provided with shafts or wells 10 and 1l as best shown'in Figures 3 and 13. These shafts are preferably aligned "as show-n,

- thereby providing a partition wall -12. The shaft 10 is of greater depth than', shaft 11 as shown to advantage in Fi re 1. The shafts 10 and 11 should be positioned, near one end of the dam, preferably near the spillway, and suitable walls 13 may be extended from the upper Wall of the dam therebyproviding a sluiceway 14, which communicates at one end with the upper end of the shaft 10..

The sluiceway 14 should be extended and so Y arranged that no great rush or current of water will flow therethrough whenthesame delivers water to the shaft 10. At the inner end of the sluiceway there.. is provided a gate 15 which may bein thetform of a plate `as shown; and slidable in grooves 16 formed in the'walls 13. A pivoted latch member 17 is provided for each end of the gate 15, each latch being normally held inv position for.

sustaining the gate 15 in itsraised position,- by a spring 18,; l 'f v.

Means are provided whereby water may be taken from the sluieeway 14 and delivereddirectly'to the bottom of the shaft or well l0. This. means comprises a relatively large pipe 19, -which communicates at its one end 1 with thev sluiceway 14 and 'at its :other end with the bottom ,of the shaft o rzwll 10 as shown. This pipe is preferably constructed in sections and is provided withtwo valves 20 and 21, the valve 20vbeing-.1ocated adjacent .the sluceway514 and provided withahand lwheel whereby .the same may be manually operated. The valve 21 is located Within the shaft 11. Between the sluiceway 14l and the associated end'of the/pipe there is positioned'l a grating v22. for the obvious pur. pose of preventing' debrisl'fromentering the pipe 19. f-

- The valve 2 1gis` preferably .ofthe plunger type,'and as shown-inFigure 2, comprises 10,a'nd provided with-a slatted bJottom 26 f (legde 5.3).

the plunger or. r0d23 'carrying'.atf its lower end a valve member 24 which is,- adapted to cooperate with an annularseat25. to close the passage through theeonduitfl9.'

- The lower end of the "shaftor well 10has two of its opposing walls formed with an offset or ledge 23', thus to provide a basin or cavity 24 which is of less dimensions than y the interior of the well 10; Also, the offsets 23'- provide a seat forthe frame generally in licated by the reference character The frame-25 is vertically movable in the' shaft The frame yis preferably equipped with rollers -27 to. facilitate the movement thereof in the shaft 10. Also, 'the -frame 25 carries a pairof ups'tandinr rods 28 each terminating at its upper en in a laterally extending portion 29. The later ally extending portion'29 in each instance is adapted to engage with a 4lug 29 carried by the gate 415, and thereby lift said gate.'

upon the frame 25 assuming an elevated position as illustrated by dotted lines in Figure 1.

As shown -to advantage 1n F lgure 1, the

outlet end of the waterdelivery pipe 1 9 communicates with the basin or cavity 24 inthe livery .pipe 19. A second'p'i'pe 31 is provided which also establishes communication between the shaft or well 10 and thejunipino' box 31. 4Each pipe 30 `and 31 is provide'` with a hydraulic lift valve as shown at 32 and 33,'respectively. i Each valve32 and 33 comprises a casing with'the usualdisc valve member 35fenclosed thereby; The valve casing carries a cylinder 36 which has .movable therein a, piston 37. It will be noted that the pipe 30hs of considerably greater diameter than the'pipe 31 and the manner in which the hydrauliclift valves controlling these pipes are operated will later be described.

The lower end ofthe shaft or well 10 also communicates with the jumping box 31 through a relatively small pipe 38 which is 4provided with a hand-operated valve 39. .1 It may be here pointed out 4that the pipe or conduit 30 is of large diameter for the purpose of'lpermitting fish to pass from the jumping box 31 `into the shaft orwell 10. The -fish are permitted to enter the shaft or well 10 when the frame 25 is in its lowermost position as'shown in Figure 1. The

pipe 31 may be equipped with a grating which willprevent sh passing'therethrough.

In ordei` to exclude the fish from theshaft or well 10 when the frame 25 is raised there is provided a gate for the inner end of the 7 and 8, .and comprisesa bar 4() which is pivotally supported by a `pin 41 extending from the wall 12. The wall 12 is preferably provided with a circularI depression 42', the diameter lof'which is slightly greater than the length of the bar 40. -The bar 40 is disposed Within this depression. The 'bar 40 carries at its one cnd a slatted closure 42 for the'inner end of the pipe 30.' The other end of the b ar 40carries :ml-shaped member 43 which is formed atV its one -end with a" lateral extension 44 'to serve asa pivotal supporting means lfor said member as shown in Figure 8.A Normally., the slatted pipe 30. This gate is best shown in Figures' closure 42 is in register with the inner end of pipe 30. The free end portion -45 of the member 43 is disposed in an' obstructing position to the frame and upon said trame approaching the bottom of the shaft orwell the same will engage this portion and rotate the arm 40 to bringlthe slatted closure 42' into an inoperative position with relation to the pipe as clearly shown in Figures 7 and 8.

'The well or shaft 10 further communicates with the pipe'19 through an auxiliary water supply pipe 46 which is provided with a I .hand-operated valve 47. Thispipe com- 'certain mechanism as will later appear. A-

shaft 49 extends between opposing walls of well 11 and carries a large sprocket wheel 50 and a pair of small drums53- A sprocket chain 54 is trained about the sprocket wheel 50. This'sprocket chain has secured to one end thereof a bucket generally vdesignated bythe reference character55 and to its-other end a eOunterWeight5G. Each druin` 53has secured "thereto the one end of acable 57, the other end of each cable 5 7 being secured to the-upper and freeend of, a' latch 17 as best show nm ,Figures-1 and A pipe 58 extendsfrom -theupper end ofthe wall 1 2 and communicates at its one end: 'with the shaft orwell 10.-.` TheA other end 'of lthepipe 58 communicates ;witha pipe 59,'said pipe being'r disposed-. at'rght angles to the pipe'5 8.

The pipe 59 carriesat :its one end a 'discharge valve (SO-which is lofthe"plungertype This valve includes an operating stem. The casing of valve -60 carriesan upwardly-extending arm 63 which-is pivotally connected at its free end tothe one end of a lever bar. 62.- The 'valve' 60 carries a discharge nipple which in trnisprovided with a hand-operated discharge valve 64.- The remaining end of the pipe 59 is also provided with at ha'ndoperated discharge .valve 465 similar to the valve 64.

. the guide members 66, said guide members lat-mg 1n the form'of angle bars and support l The bucket 55 1s vertically movable within l ed by suitable'bracketsor the like not shown.

Referring again to the feed or delivery pipe 19'the same has connected thereto a pipe 67 which is provided with a valve 68 adjacent fits end communicating with the pipe 19. The lower end-of the pipe 67 communicates'with the similar end of the cylinder 36 oflhydraulic valve 33 as'shown to advantage in Figure 2. The pipe 67 has interposed therein a second valve 70 which may be of the plunger type as that described for valve 21. .The operating stem of the valve 70 is pivotally connected to a rod 7l which is fulcrumed by an upstanding mem- .ber 72 carried by the pipe 67. One end of 'the rod or .bar 71 carries a weight 73 and vits other end is disposed to be engaged by the lower end of arod 74, said rod 74 being suitably supported for vertical movement by guide members as shown. These guide members for the rod 74 may be supported by brackets (not shown) extending from thev walls of the shaft 11. The upper end of the rod 74 is provided with anl enlargement or head 75 which is in alignment withv the bucket 55. The lower end of they cylinder 36 of valve 33 has a discharge nipple 76 which carries 'a stop lcock adapted to be operated bya rocker arm 77 and this rocker arm is operatively connected tothe bar 71 by means of a link or rod 78.

The casing of the valve member 21 has extending' upwardly -therefrom an `arm 79 which has pivotally' connected' to its freeend one end of a rod 80. The valve stem 23 is pivotally connected to the rod 80 as shown at 80. The remaining endof the Arod 8O has depending therefrom a link 81, said link being-pivotally,connected at its upper end to the ba'r or rod 80 and longitudinallyslidsi f able through an opening in the arm 81" extending` laterally from. the bucket55. The

rod 81 carries the stops 82 and 83jwhich are adapted to serve for'operating the valve 21v the movements of thebucke't 55l in a manner hereinafter tobe described;

' Thelever bar 62 has depending therefron'i" a rod' 80 which terminates. at its lower end in anofset' vor.` laterallyextending portionl 85adapted'to be engagedby a -finger 86 extending .from the bu'c-ket55, .Theportion 85 of the rod 84 .isso arranged 'l thatsaid rod 84 willbe drawn downwardly immediately previous to the'bucket. 55 assuming its lowermost position as illustrated in dotted lines in Figure'6 and thus close the valve 60 at this particular moment.

The bucket 55 furtherfcarries a valve 87 adapted to close an Aopening inthe vbottom of said bucket.- The valve is carried by a rod r88', said rod terminating atits upper end-in an outwardly extending portion 89. Valve 87 normally remains closed b v'virtne of weight of rod 88.

'A second bucket 92 .is provided which is vertically movable in gui es 93 and in reglster with the valve 65 of pipef59. The guides 93 :are preferably angle -irons as shown, and'brackets may be extended fromthe walls ot' the shaft 10 forl 'supporting these guide members.4 The bucket 92 is considerably larger than fthe bucket 55.

The bucketA92 is'suppo'rted by a cable "94.

which has its one endl secured to the cover 48 as indicated at`95, and its other end sebucket to the frame 25.

The pipe 59 also carriesvalve102, which is' of the plunger type, and. its operating stem 103 pivotally connected to-a lever bar 105. said lever bar being fulcrumed'by an arm 104L carriedby the casing'of valve 102.-

The one end of the bar 105 is provided with an opening through which. -there passes a 'cable 106 said cable having secured toits one end a'weight 107 normallyadapted to rest upon a platform 1 08 located in the Y upper end of the bucket92.

y.20 passes over a pulley 109 and has .secured tol place shown in the drawings.

its other end a weight which is smaller than the weight 107. 'l` he cable has further secured thereto a stop 111 which -is adapted to limit the movement of the cable in one direction through the opening in the.v bar 105. The bottom of the bucket 92 is provided with a stop cock 112 which may be operated by a crank arm 113. YUpon the bucket 92 assuming its'elevatedv position as shown in full lines in Figure 6, a finger 114 is adapti'v ed to engage the .crank 113 and'close the valve 112. A second finger 115 is adapted to open the valve 112 upon 'the' bucket' 92 assuming its lowermost position, as illustrated in dotted lines in Figure 2.

-A tank 116 is provided and preferably positioned in the shaft or well 11 at the A pipe 117 extends through the wall 12 and communirates with the .shaft 1`0 at its one end while its other end is provided with a valve 118 which is also of the'plunger type. The valve 118 has its operating stem connected to one end'ofa rod 119,.said rod 119' being fulcrumed byan arm 120 extending upwardly'from the casing of valve 118. The free end of therod 119 carries a float 121;,`

The bottom of the tank 116 has extending therefrom a pipe 121 which has "interposed therein a hand-operated valve 122. The pipe 121 communicates -at its lower en d with the similar endof piston- 36'for-valve 32. The cylinder 36 is provided with a discharge pipe or nipple 123 which carries a control valve adapted to be operated by a rocker arm 124. The piston 37 of cylinder 36 has'secured thereto a rod 125 whichfis extended upwardly a considerable distance :'.s shown to advantage in Figure 2. This rod carries anarm 126 which is adapted to engage lugs- 127 and 128 carried by a rod 129. The rod 129 is .vertically movable and has its lower end connected to the rocket arm 124 ofdischarge valve for nipple 123.

The rods and 129 may be supported for vertical movement in any ,desirablevmanner as'by guides'carri'edupon the brackets extending fromthe walls of the shaft 11. The

upper end of the rod 125Ipasses through the `bar 105 and carries a stop 1251 which is disposed 4beneath the lbar -105. The rod 125 also carries a laterally extending finger 130 which is disposed in the path of travel of extension 89 on the valve carrying rod '88.

The lever bar 62 has also depending therefrom a rod 132 said rod vbeing suitably held '.for -vertical movement by guide a brackets (not shown) and carrying a. dog

133 Which-is adapted to be engaged by finger 134 carried bythe bucket 92. The finger 13 4 is pivotally s upported at its inne'r end as. at 135 (Figure 10) and said finger is pressed inwardly by a spring 136. -A sup` porting board 137 is provided and suitably mounted at the place shown 4in Figure 6 said board carrying a block 138"which is provided withk a. lower inclined surface 139. The block138 is disposed in the path of' travel of arm .134-, as best illustrated in Figure `9 and upon the arm 134 engaging with the bloek138 said arm will be 'pressed outwardly' for releasing the dog 133 carried by the rod 1132.' f' a It is believed from the description heretofore given that a clearunderstanding may be had of the structure and assembly of the apparatus .constituting the present invention. The operation of the apparatus asawhole will follow.

Let it be assumed that the buckets 55 and 92 are in their elevated position, as illustrated in :full linesl inthe drawings, the valve 21 open, and the gate 15 also open; then the operation of 'the' 4apparatus may. ,be

started by swinging upward the free en d ofy the lever bar 62. With the valve 21 open and ate 15 open, the shaft 10 will be quickly fille with water. Upon opening the valve 60'water will flow through pipe 58 and into bucket 55. The time necessary `to filljthe bucket 55 may .be regulated by the valve 64. Upon the bucket 55 being filled with water the-same will'move downwardly between A'its ides 66 and carry upwardly the counter- 'weight 56. When the bucket 55. reachesits dotted-line position illustrated in Figures 2 E:and 6,fthe finger 86 'carried vthereby-lwill engage with theiprojection 85 of the rod 84 and close the'valye 60.V It should he noted that the water continues -torun into the bucket 55 during its ldownward movement. viz, the .valve 60 is Anot closed until the .bucket has substantially completed its down'l ward movement, which insures that the bucket 55 willmove downwardly in a cer tain and positive manner.V Also,'upo1 1 the bucket 55 reaching its dotted line position,

its arm 81 will engage the stop 82 of rod 81 and.'v draw-fthe lever bar- 80 downwardly,A

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thereby closing the valve 21. During this downward movement of the bucket 55 the shaft 49 is rotated and the cables 57 wound about the drums 53 thereby drawing the free ends of the latches 17 from beneath Vthe gate 15 and permitting gate 15 to move downwardly and yassume a position for closing the entrance of the'sluiceway 15 into the well 10. The supply of water to the well 10 is now eliminated with the exception of the water llowing through the pipe 46. This pipe is always open. Also, the pipe 38 is maintained open in order that a constant stream of water may flow into the jumping box 31. The water flowing from the jumping box 31 will attract thelislr-that is,

the fish will seek the source of this water and enter this jumping box.

The bucket 55 upon assuming its lowermost position depresses the rod 74 and lifts the weight 73 carried by the rod 71. This.

movement of the rod 71 opens the valve 70 and permits water to pass from pipe 19 into the cylinder 36 of the hydraulic lift valve 33. The water enters the bottom of cylinder 36 of this valve and the area of the piston head 37 is of such relation to the disc 35 that with the well 10 substantially filled with water, the water pressure from pipe 19 will be suliicient to lift the disc 35.- The water will pass from the well 10 through the pipe 3l into the jumping box 31 and further attract the iish to enter the jumping box. As before stated, the pipe 31 is pref-.

erably provided with a grating to prevent fish entering the well 10 througlrthis pipe. After .the water in the shaft or well 10 has reached a certain levelthat is, after this water has been lowered a certain degree by the discharge from the pipe 31, the pressure in tank 116 willbe suiiicient to raise the disc 35 of the valve 32. Upon this.

occurring the piston rod will move upwardl)1 and its arm 126 engage thestop 127 carried by the rod 129"and openthe discharge nipple 123'. Also, .the upward movement of the rod 125 brings.its'-tinger 130 into engagement with the' projection 89 of the rod 88, therebyy raising the valve 87 in the bottom of the bucket55.' During thismovement of rod 125 the -stop .125" carried by said rod 125 operates the lever bar 105 toopen the valve 102. i

The pipe 30 is now open and ish can pass through the same into the bottom The time the pipe 30 is maintained open depends u on the time necessary for the water to ow from the tank 116. This period can be regulated by the'rate of discharge through ,nipple 123.

Sutiicient time should be allowed to permit all fish accumulated in the jumping box 431 to enter the bottom of the shaft 10. During this period the water in the well has reached its lowest .level and no appreciable water pressure exists against the fish when entering said well.

As before stated, the valve in the bottom of the bucket 55 is lifted at the time the valve 32 is opened. The water in bucket discharges through the opening in the bottom thereof provided by the' valve 87 and upon the bucket becoming empty the .same moves upwardly-that is, the bucket position. Previous to the bucket reachl ing its uppermost position the arm 81 carried thereby engages the stop V83 of the rod 81 and lifts the free end of the lever bar SO, thereby opening valve 21. Water now proceeds vfrom the sluiceway 14 through the pipe 19 and into the bottom of the well 10, y

Upon the water in the well-10 reaching the level ofthe pipe 58, water will pass. through said. pipe and into the bucket 92.

lThebucket 92` will be filled with water in a short interval of time and will move downwardlyr carrying the frame 25 upwardly in the shaft 10. The -upward movement of the frame 25 will cause fish in the shaft 10 to move upwardly.v During the upward movement of the frame 25 the projections 29 of rods 28 will engage lugs29 of gatel andelevate said gate. The lish arenow free to proceed through the's'luiceway 14 and into the upper waters ofthe river.

Upon the bucket 92 assuming. its lowermost position, as shown in dotted lines in IFigure 2, its outlet valve 112 will'be opened byf the finger' 115. The bucketv92 will maintain this lowered position a suliicient interval of time to permit the fislrtoleave the shaft 10. When the bucket 92 isv empty the weight of the frame 25 will carry this bucket upwardly. It should also beghe're pointed out that during vthe interval -the frame 2 5 iselevated in the shaft 10."the slatted closure 42 will assume a position. for closing the inner end ofthe pipe `30"an'd thus prevent fish coming into the well v10. Upon' the frame 25 moving downwardly, previous-to the moment the same becomes .seated in the bottom of the shaft 10, the

portion 45 of member 43 will be engaged y the frame and the slatted closure 42 swung to its' inoperative position with relation to the ipe 30.

During t e upward movement .of the bucket 92 its arm 134 engages the dog 133 thereby ufting 'the free andere@ lever bar 62 and opening valve 60. The. arm

of the bucket, 92.- Water will now flow `from/che shaft into the bucket 55 and the operation heretofore described will be' repeated. t

It shouldbe here pointed. outthat the I -float`121 loperates to close the valve 118 fact lthat small fish may enter .the shaftwhen the tank 116 'is filled with water from the supply pipe 117. It has been hereto` fore stated that the small fish may be,trans"' ferredfrom vthe upper side of the dam" to' the lower side thereof by the presentappa:

ratus. This is entirely apparent from the duringthe period water is discharged there in from the sluiceway 14 and leave'said' is open.

shaft through the. pipe while valve 32 The vapparatus heretofore described controls the flow of water to. such av degree that small fish' being transferred down stream would not bei iI'rJured-.j

I 1. A water dam structure .of the character- 'described having a well, means for alter? nately filling the well with water and"sub" stantially reducing the' height of.l the same'- VVhle we have shown and describedthe preferred form of our invention, .it is to be understood that-we are aware of the fact that the general'structurepcombination and arrangement of parts might 'be changed by those'skilled in the art without departing vfrom the spirit of our invention,as indicated by the appended claims.1 I

and means for permitting fishlto enter said well when the amount of water therein is thus reduced. 4

2. A water dam having a well, means for.

alternately filling the well with water and' reducing said water to :a low levelin-the same, and means for inducingfishfto enten said wellwhen water is at a'low level. i

8. A water dam having a we1l,gmeans for alternately filling thewell with water and reducing said water to a lo'w level, means adapted to permit lfish to enterfthe bottoni of the well when said Water is at a low- --with water. i

exit fer said ashv from vShawn during- .tomof thewell and. water on thelower -side ofthe dam, means for filling the-well with water, means adapted'to operate. the valveicontrolling the opening `in the bottom of the well whereby the water. in said well may be reduced to a low level, means wherebyV fishmay be 'permitted toenterthe well during the period'the water isat a-low level, and means whereby said fishfmay pass from `Athe well duringthe period the sameis filledA with water-" A y f 6. A`water dam structure having a. well, means for alternately filling the 'well with water land then reducing the-'same toa low level, means ywhereby fish may be permitted period ofthe water, andan exit at. the upper end 'of saidwell adapted to permit the fish to leave the wellw en thesame'is filled 7.Alwate1r dam structure, having well. means for alternately filling' `the 'well-with' waterandthen reducin 'thesame' toa low to passy 4into said well during the low level i' level, means lwhereby fis -may-bepermitted I to.pass intolsaid well during the' -lowlevel period ofthewater, an exit at the upper end of said well adapted to `permit the fishto 'leave the `well 'when' the same is filled Awith water, and means adapted to urge the fish upwardly and toward the exitt'of said well .duringth'is' last named period..

f8.' A water dam-v structure having a well, means for alternately filling .the well with water and then reducing the same to a low' level, -meanswh'ereby fish may be permitted topass' into said `well during the low level period of the wa-ter, an exitat the upper end of said well adaptedfto permit the fish toleave the well when thesame is urge the fish upwardly. and toward the exit of' said well ,'during the: last named period. 9. -A water'dam, structure havinga well,

' filled withv watery and means adapted to mea-ns forv alternately; filling the well with permit the fishto leave the well when the same is filled with water, a rack vertically level, and means whereby Asaid'j'fish ma 'c passif' movable in the well, and meanswhereby the from the well when said well is fille with water. 'u

4. A water vdarn having a well, means for'- alternately filling the well 'withwater and '10. A water 4dam structure having a well,

reducing said water 4to a low level, means adapted to .permit fish, .to v enter. the well when said water is at a low level, means". adapted to cause the' fish'to move upward rack will be moved upwardly during the periodzfthe vwell is filled `with water and -t'herebv. 'tollurg'e the fish towards the exit of said well.

to. ass into said'well during the low level period ofthe. water, an exit at the upper to leave the well when the same is filled with --water, :i rack vertically movable 'in the well,

and hydraulic operated means whereby the rack will he moved upwardly throughthe well during the period the same is filled with water and thereby to urge the fish toward the exit of said well.

11. A water dam structure having a well communicating at its bottom or lower end with the water on the lower side of the dam and con'nnunicating at its upper end with the water on the upper side of the dam, means for alternately filling the well with water and then reducing the same to a low level, and means for causing a constantpfiow of water from the well into th water on the lower side of the dam whereby to cause fish to seek the source ofi-said water and enter saidfwell.

"12. A water dam structure having a well communicating at its bottom or lower end with the water on thelower side-of the dani and communicating atits upper end with the wateren the upper side of V'the dam, means for alternately filling the well with water and then reducing the saine to a low level. means for causing a constant flow of water from the well into the water ou the lowerside of the'dain whereby to cause fish to seek' the source ofs'aid water and enter said well, and means adapted to urge the fish to pass upwardl)v in the well duringtlie interval'the same is filled with water and thereby pass or move into the water on the upper side of said dam. u

13. .YA water dam stiucture having a well therein, said well having an inlet communicating with the water on the upper side thereof and having an outlet adapted -to discharge water from the lower side of the dani, means mit the well yto f illwith water, means for closing the inlet and permit gradual dis charging of the water romsaid well, said Y.means including the'h outlet 'for the well and' said outlet lbeing adapted to vpermit fish- "to pass therethrough the well, means 4for maintaining certain depth of water in the well and acontinu'ous ydischarge of water through the. outlet, of said well thereby enabling fish to enter the i well during a lowlevel periodioi thevwater,

auxiliary means for again.- filling vthe well with watee, and means for opening the inletto saidwell after the 'samev isfilled the second time and permit the fish to pass from the well.l i

said well,- having -withthe water on the upper side of the dam 14. A. water 'l dam lhavin-g a-well therein, an inlet communicating and an outlet adapted to 'discharge water from. the lower side of the dam', means for closing the outlet and permittin 'the well to fill with weten' means forli-"c o sing the forclosingthe outlet and per- 'with the water n v`to permit fish t'pass therethrough into thel bottom of the well, means for maintaining a continuous discharge of watery through the outlet during the low level period of the water thereby enabling fish to enter the bottoni of said well, auxiliary means for introducing water into the bottom of the well, and again filling the sainer wih the outlet valve thereof closed, and means for opening the inlet to permit the fish to escape from said well into the watery on the upper side of said dani.

15. A water dam having a well therein, said well having an inlet communicating with the water on the upper side of the dam and an outlet adapted to discharge water from the lower side of the dam, means for closing the outlet and permitting the well to fill with water, means for closing the inlet and gradually discharging water from said well, said means including the outlet for the. well and said outlet being adapted to permit fish to pass .therethrough linto the bottom of the well, means for maintaining e a continuons discharge of water through ing the inlet to permit the fish to escape from said well into the water on the upper side of `said dam, and means adapted to c urge the fish upwardly in said wellA during the interval the same is filled with water.

16.- A. water dam having a well thereim,

said well having an inlet communicating water from the lower side of the 'dammeans for closing the outlet and-permitting the well to fill with water,.means for closthe upper side -of the dam and an outlet adapted to 'dischargeI ing the' inlet and {fradu-.ally discharging water from said well, said means including the outlet for the well and said outlet being adapted to permit fish to pass-therethrough iis into the bottom of the well, means for maintaining a continuous-discharge of water through the outlet during the low "level empty period of' the waterthereby-enabling fislito enter the bottoni of the well, auxil- Y iary means forgintroducing water' into thebottom of said well and again filling the same with the outlet valve thereof closed, means or'opening the inlet tof permit the 1 fish to escape from said well` into thewater lon the upper side of said dam,

vertically movable' inthe well,V .means for moving said member upwardlg'during the interval the well-is filled Wit water, and

means whereby upon said member completa member j ing its upward movementidevices will. be

l actuated for opening the outlet valve to said Y dam and an outlet adapte well after a predetermined Tinterval of time and, thereby to again startI the operation heretofore described. Y

17. A water dam having a well, said well having an inlet at its top which communicates with the'wat'er on the u per side of the to discharge water 'from the lowerside of said'dam, a

counter-balancedbucket, means whereby' the .bucket may be 'filled with water thereby causing the same to move downwardl yland means adapted to be operated b'y the descent of said Abucket, for 'closing the inlet to said well and opening -the discharge or outlet K v thereof,

18.- A water dam having a. well, said well -havingan inlet at its top which communi- 4cates with the water at the upper side of'the dam' and an outletadaptedto discharge water 'from' the lower side of the dam, a

`'hydraulic lift valve for closing the outlet of said well, a counter-balanced bucket, 25' finto the bucket for -illing 'the same to cause means whereby water ,may be discharged vsaid bucketto descend, means whereby the descent of said bucket will cause water pressure te be'delivered for operatingthe ,h draulic lift valve and open the outlet `to said well, and means adapted to be operated by the descent of bucket forclosing the inlet "19a-'In jan apparatus of the character de- I" scribed, a well having a pair of discharge valves, .means whereby one of said valves l. ma beopened for discharging water from sai vwell, and means, adapted to automat- -ically operate for openinglthe other Valve i lower after the water in said'wellhas been lowered apredetermined degree 20. In an-apparatus ef the .character described, a well havin an inlet 4and an outlet, a counter-balance bucket, means whereby the bucket ma. filled with water-to cause the same to escend, said outlet of the well being normally closed, means'whereby with the descent of the bucket said outlet will be opened and the inlet closed, means wherebiy upon' the bucket assuming its posltion the water' will be discharged therefrom, and means whereby upon the bucket assuming its initial position the inlet will be opened and the outlet closed.

21. In an apparatus of the character-described, a well yhavin an inlet and an out# let, a counter-balanc 'by the bucket may be filled with waterv to bucket, means wherecause the same to descend, said outlet of whereby upon the bucket assuming its lowered position the water will be discharged therefrom, Vmeans whereby upon ithe bucket assuming its initial positiomthehinlet will be opened andthe outlet closed', 5'af rack-within said Well vertically movable', a ysecond bucket counter-balanced by said rack, and means whereby after the discharge valve has been closed aA predetermined interval the second bucket will befilled withwater and thereby to elevate said rack in the well.

22. In anapparatus of the 'character described, a well having an inlet-and an 4outlet, a counter-balanced bucket, meansfwhereby the bucket may be filledv with water'to cause the same to descend, said outlet of, the well being normally closed, mea-nsiwhereby with the descent of the bucket s lid outlet will be opened and the inlet close'd, means whereby' upon the'. 'bucket assuming its lowered position the water will-bef- .ischarged therefrom, means whereby upon t ve-bucket assuming its initial position the inlet will be opened and the outlet closed, a `rack within said well vertic'za'll'yf'l movable, a sec-ond bucket counter-balanced by saidiraek, means whereby after 'the discharge valve has been closed a predetermined interval'iithe lsecond bucket will be filled with waterjand thereby to elevate said rack inthe well, means for causing the water fin the secondbucket to discharge thereromwhen said bucket reaches a predetermined -lowered level, and means whereby upon :the 'second bucketfassuming its initial sition water will be caused to enter the rst named bucket.

23. In an apparatus of the characterdescribed, a well having an outlet pipe at the .bottom-thereof, a device movable vertically in'said well, and means adapted to be a'ctuated upon said deviceassuming4 its lowermost position whereby said .outlet will 'be provided with a reticulated or slatted closure.

24. .In an apparatusof the character described, a well having an olltlet,''a rack mem ber vertically movable in said well, a bar pivoted to the inner wallv of said well and carrying 'a4 slatted closure adapted to normally arrange. itself in registering relation .with the outlet of said well, andmeans 

